Brent: There are the 2-inch 12-gauge guns and there are the "lightweights" built by various English makers. Both should fit the bill for what you're trying to do, and you're right, the chase is a big part of the fun. Lincoln Jeffries and another maker (can't recall the name, they had the scalloped-out stocks and the short forends) built them specifically, and in 2 1/2-inch 12. Both were well under 6lbs.